Rank the following liquids by vapor pressure from lowest to highest: C5H12, CH4, C3H8, C2H6, C4H10.
a) C5H12 < C4H10 < C3H8 < C2H6 < CH4
b) C2H6 < C3H8 < C4H10 < C5H12 < CH4
c) CH4 < C2H6 < C3H8 < C4H10 < C5H12
d) CH4 < C5H12 < C4H10 < C3H8 < C2H6
Answer: a) C5H12 < C4H10 < C3H8 < C2H6 < CH4